ZERO API KEY · 100 FREE REQ/DAY/IP Universal On-Chain Forensics, Proxy-Aware Bytecode Inspector & Calldata Decoder

Supports Base · Ethereum · Solana · EIP-1967 Proxies · Revert Hex

LIVE DEMOS: ↗ Open Full $USDC Scorecard

1-Click Agent Setup: claude mcp add --transport http nullclear https://api.nullclear.dev/mcp

🐦 Share Scorecard on X

● FOR DATASET SELLERS, SCRAPERS & LEAD BROKERS

Automated Schema Escrow for Datasets, Leads & Web Scrapers.

Solve the dataset trust paradox. NullClear SafePay verifies your CSV/JSON row count, required columns, zero-null integrity, and generates a 5-row redacted sample preview before executing atomic USDC payout.

✓ Deterministic CSV, JSON, and NDJSON row counter & column validator

✓ Automatic 5-row Redacted Sample Preview (e.g. al***@stripe.com) proves quality without leaking data

✓ Instant atomic Base USDC settlement upon 100% schema match

⚡ Live 10-Second Escrow Sandbox

Watch a real Dual EIP-3009 Lock + Edge Dataset Verification + Atomic Base Payout

Create an Instant Escrow Link

No account or KYC required · Shareable link generated in 1 click

USDC · Base

1. Select No-Code Verification Preset

Deal Title / Deliverable Name

Deal Amount (USDC)

Protocol Fee Mode (1.0%)

Seller Base Wallet (0x...)

Network

Required Columns (comma-separated)

Minimum Row Count

Paste Sample JSON Record to Auto-Infer Schema & Invariants

Seller Net Payout $495.00 USDC

NullClear SafePay Fee (1.0% → 0xB586...d5c) $5.00 USDC

Total Buyer Wallet Authorization $500.00 USDC

100% CLIENT-SIDE ZERO-KNOWLEDGE PREVIEW STUDIO

Instant Dataset Redaction & SHA-256 Proof Seal Generator

Prove dataset structure, row count, and SHA-256 integrity to your buyer without exposing raw emails, keys, or PII. Runs 100% in your browser via WebCrypto.

Raw Dataset / JSON / CSV Input (Never leaves your browser)

Buyer-Safe Redacted Preview + SHA-256 Commitment Seal

Click "Redact & Compute SHA-256 Proof" to generate buyer-safe preview...

INSTITUTIONAL COST & CUSTODY COMPARISON

Why Counterparties Switch to NullClear SafePay

Interactive Deal Value: $5,000 USDC

Metric	NullClear SafePay (nullclear.com)	Escrow.com	Upwork Escrow	Telegram OTC Middlemen
Fee on $5,000 Deal	$50.00 (1.0%)	$162.50 (3.25%+)	$500.00 (10%–20%)	$250.00 (5% + Scam Risk)
Capital Lockup / Custody	0 Seconds (Stays in Buyer's Base Wallet)	5–10 Business Days Wire Hold	14-Day Clearing Hold	100% Custodial Middleman EOA
Deliverable Verification	Deterministic Edge Schema / SHA-256 (<140ms)	Manual Dispute Arbitration (Weeks)	Subjective Ticket Review	Manual Chat Screenshots
KYC / Onboarding	0% KYC · Instant EIP-3009 Signature	Full Passport + Bank Statements	Tax ID + Account Freeze Risk	Anonymous / Zero Recourse